File sharing problems in windows
Windows File Sharing
PROBLEM:
\\svr6 is not accessible.You might not have permission to use this network resource.Contact the administrator of this sercer to find out if you have access permissions.This account is not authorized to login from this station
This is a general checklist for sharing files between PCs in a peer to peer network. There can be other reasons for problems but I think most people new to networking and finding sharing a problem will find the answer somewhere in this checklist.
These checks are all necessary for sharing to work with TCP/IP.
- PCs which are not XP must have TCP/IP installed.
- Each PC must have a unique computer name.
- Each PC must have a network share defined.
- ALL NICS must be on the same subnet (e.g. IP 192.168.0.* subnet mask 255.255.255.0).
- XP PCs must have Netbios over TCP/IP enabled (only essential for XP to talk to W9X PCs).
- MS Client and file & printer sharing must be enabled on each NIC.
- All NICs must have their node type = anything except p-node (peer to peer, or point-point). Check at cmd prompt with Ipconfig /all (XP/W2K) or winipcfg (W9X).
- XP's ICF firewall is permanently disabled. (Only necessary for pre XP SP2).
- All 3rd party firewalls are disabled, uninstalled and deleted (until connection is working).
- PCs have the same workgroup (helps, but not essential).
Allow 15 mins after rebooting a PC for that PC to appear in the workgroup, or for it to see all other PCs. Or you can search for the PC by its computer name.
If all the above checked out and still a problem check these:
Other ideas:
- Realtek cards have been known to be a problem with IRQ conflicts. Move the Realtek card to another PCI slot.
- Check your Services are Started on all PCs: Workstation, Server, TCP/IP Netbios helper, Computer Browser.
- You only need TCP/IP. NWLink NetBIOS, NWLink IPX/SPX/NetBIOS Compatible Transport Protocol ->are not needed and can confuse things. Remove them.
- XP gives access to its shares via the Net Guest Account. (Note, not the same as the local guest account in user accounts which should be off).
Net Guest Account is enabled by default in XP, but check it:
At command prompt:
>Net user guest
Should return a line with 'Account active yes'.
Check XP Security policies:
- Access this computer from the network: add guest
- Deny logon locally: remove guest
- Network access:Sharing and security model... -> Guest only
- Deny access to this computer from the network-> check Guest is not here.
Error Message: The Account Is Not Authorized to Login from This Station
SYMPTOMS
When you attempt to join a Windows 2000-based computer to a Microsoft Windows NT 4.0-based domain, you may receive the following error message:
The following error occurred attempting to join the domain "domainname": The account is not authorized to login from this station.
CAUSE
This behavior can occur because the Local Group Policy, specifically those in the Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options folder have a restrictive setting.Some of the policies that may cause this behavior are:
•
Digitally sign client communications (always)
•
Digitally sign server communications (always)
•
Digitally sign server communications (when possible)
•
LAN Manager Authentication Level set to Send LM and NTLM - use NTLMv2 session security if negotiated
•
Secure channel: Digitally encrypt or sign secure channel data (always)
•
Secure channel: Require strong (Windows 2000 or later) session key
RESOLUTION
To work around this behavior, set the values back to what they would be if a clean install had occurred. Examine the preceding policies and set them back to their default settings.The default settings of these policies are:
•
Digitally sign client communications (always) - disabled
•
Digitally sign server communications (always)- disabled
•
Digitally sign server communications (when possible) - disabled
•
LAN Manager Authentication Level set to Send LM and NTLM - use NTLMv2 session security if negotiated - (default) send LM & NTLM responses
•
Secure channel: Digitally encrypt or sign secure channel data (always) - disabled
•
Secure channel: Require strong (Windows 2000 or later) session key - disabledRestart your computer and you should be able to join the domain.
Other useful guides for step by step sharing are available here:
http://practicallynetworked.com/sha...filesharing.htm
MS Tech D/B
http://support.microsoft.com/defaul...7&Product=winxp
and here:
http://www.homenethelp.com/web/howto/net.asp
Developing a SOHO network, sharing and security (by MS):
http://www.microsoft.com/windowsxp/...net/default.asp
How to share a printer and connect to a shared printer:
http://www.microsoft.com/downloads/...&DisplayLang=en
Ports to open in a firewall for various applications:
http://www.microsoft.com/security/protect/ports.asp